FIELD: information technologies.
SUBSTANCE: network function is configured with the possibility to support a copy of the session condition for an access terminal. The network function is additionally configured with the possibility to request the master device of the session, in order to define whether the session condition has changed. The master device of the session is configured with the possibility to generate a response to the request, which makes it possible for the network function to renew a copy of the session condition, if the session condition has changed. The access terminal may be configured with the possibility to modify the session condition in the first network function and to send a message into the second network function, to specify the fact that the session condition has changed.
EFFECT: improved efficiency of communication.
15 cl, 7 dwg
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